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(define *watchdog*
(make-thread
(lambda ()
(thread-sleep! 0.5) ;; half second delay for startup
(let loop ()
;; sync for filesystem local db writes
;;
(let ((start-time (current-seconds)))
(let ((start-time (current-seconds))
(servers-started (make-hash-table)))
(mutex-lock! *db-multi-sync-mutex*)
(for-each
(lambda (run-id)
(let ((last-write (hash-table-ref/default *db-local-sync* run-id 0)))
(if ;; (and
(> (- start-time last-write) 5) ;; every five seconds
;; (common:db-access-allowed?))
(let ((sync-time (- (current-seconds) start-time)))
(db:multi-db-sync (list run-id) 'new2old)
(if (common:low-noise-print 30 "sync new to old")
(begin
(debug:print-info 0 "Sync of newdb to olddb for run-id " run-id " completed in " sync-time " seconds")
(if (> sync-time 10) ;; took more than ten seconds, start a server for this run
(debug:print-info 0 "Sync is taking a long time, start up a server to assist for run " run-id)
(server:kind-run run-id))))
(hash-table-delete! *db-local-sync* run-id)))))
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